lipos with female 4mm bullets built-in

[brew99]

I have half a dozen or so of these 2s lipos which I use for my trucks (5000mah, 40c). Now that I am getting into the FE boats also, can I use these lipos reliably, or should I purchase new lipos that have the direct connect wires? I ask this as most of the install I see have batteries with the direct connects. I suppose the issue is how much current can those 4mm bullets feed without heating up.

Anyone tried using these batteries before with success?

[MORIDE]

A little late, but I have both types and the the mm bullet on the battery has not been an issue, I use Gens Ace 40C 2 and 3S.